The delay grain either didn’t light, or there wasn’t an ejection charge. The clay cap on the forward end of the motor was still intact when the rocket was recovered. The previous two motors from this pack performed nominally. This was the last motor from the package.
The motor seemed to perform normally with the exception of the lack of ejection. All motors from this package were flown in the same rocket, and appeared to achieve the same altitude. Burn time seemed to be similar to other C6’s that I’ve flown.